A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5960-01-065-5332
NSN 6145-00-487-9575
NSN 6620-01-617-3915
NSN 6645-01-087-7345
NSN 6650-01-287-7960
NSN 5975-01-232-1674
NSN 5920-00-925-2639
NSN 6645-01-490-5948
NSN 6685-01-628-2566
NSN 6620-01-391-4189
NSN 5915-00-601-1548
NSN 5915-00-636-9785